Saturn's Rings Are Shockingly Thin

Saturn's rings look enormous, but on average they are only about 20 meters thick. They stretch across huge distances while staying thinner than many buildings are tall.

Saturn's Rings: Huge, Bright, and Paper-Thin

A Giant Halo Made of Ice

The rings are made mostly of water ice, mixed with smaller amounts of rock and dust. The pieces range from tiny specks to chunks up to 10 meters wide.

Saturn's Rings: Huge, Bright, and Paper-Thin